/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/tab_effect_scale_onclick.css made available under Mozilla Public License v. 2.0
See the above repository for updates as well as full license text. */

.tab-stack{ transition: transform 20ms linear }
.tabbrowser-tab:active .tab-stack{
  transform: scale(0.9);
}